Abstract/Details

Electroproduction of omega (783) mesons using CLAS at Jefferson Lab


1999 1999

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Abstract (summary)

Electroproduction of omega(783) mesons from a proton target has been measured in a search for so called “missing baryon resonances”. A 4.0 GeV electron beam was used. The scattered electrons were measured in coincidence with the recoiling proton and the positive pion from the omega decay. Missing mass techniques were applied to identify the omega in the final state, and to reduce the rho(770) contribution. The data show the omega very clearly on a smooth background originating predominantly from three-pion phase space. Yields have been extracted, and the W and t dependencies determined. The t dependence is mostly monotonic for W > 2 GeV, as expected from pion-exchange and diffractive processes, while for W < 2 GeV strongly non-monotonic behavior is observed, indicative of possible s-channel nucleon resonance contributions.

Indexing (details)


Subject
Particle physics
Classification
0798: Particle physics
Identifier / keyword
Pure sciences; Electroproduction; Mesons; Omega (783) mesons
Title
Electroproduction of omega (783) mesons using CLAS at Jefferson Lab
Author
Coleman, Alan Clayton
Number of pages
93
Publication year
1999
Degree date
1999
School code
0261
Source
DAI-B 61/05, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780599805507, 0599805501
Advisor
Funsten, Herbert O.
University/institution
The College of William and Mary
University location
United States -- Virginia
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
9975021
ProQuest document ID
304538145
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/304538145
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